#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int strlen(char arr[10])
{
	int sum = 0;
	int i = 0;
	while (arr[0 + i ] != '\0')
	{
		sum++;
		i++;
	}
	return sum;
}

int main()
{
	char arr[] = "asdfg";
	int num = strlen(arr);
	printf("%d\n", num);
	
	return 0;
}



